What type of experiment is the Laney method classified as?

The Laney study is classified as a laboratory experiment because it was conducted in a controlled environment where variables could be manipulated and systematically observed. In this context, participants were often placed in a situation that allowed researchers to isolate the effect of specific manipulations, such as having participants recall childhood experiences involving certain foods. The use of standardized procedures and measures is a hallmark of laboratory experiments, enabling researchers to establish cause-and-effect relationships.

In contrast, field experiments take place in real-world settings, case studies focus on a single individual or small group for an in-depth understanding, and longitudinal studies track the same subjects over an extended period to observe changes over time. Each of those methodologies has distinct characteristics and purposes, which differentiates them from the structured and controlled approach utilized in the Laney study.